Allow AbsTime and Duration to be used cross-platform; add usleep() wrapper. Related to QPID-1209

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@709028 13f79535-47bb-0310-9956-ffa450edef68

2 files changed, 65 insertions, 3 deletions

diff --git a/cpp/src/qpid/sys/posix/Time.cpp b/cpp/src/qpid/sys/posix/Time.cpp
index 8aa9fd9946..d8d0a58d2e 100644
--- a/cpp/src/qpid/sys/posix/Time.cpp
+++ b/cpp/src/qpid/sys/posix/Time.cpp
@@ -26,18 +26,39 @@
 #include <time.h>
 #include <stdio.h>
 #include <sys/time.h>
+#include <unistd.h>
+
+namespace {
+int64_t max_abstime() { return std::numeric_limits<int64_t>::max(); }
+}
 
 namespace qpid {
 namespace sys {
 
+AbsTime::AbsTime(const AbsTime& t, const Duration& d) :
+    timepoint(d == Duration::max() ? max_abstime() : t.timepoint+d.nanosecs)
+{}
+
+AbsTime AbsTime::FarFuture() {
+    AbsTime ff; ff.timepoint = max_abstime(); return ff;
+}
+
 AbsTime AbsTime::now() {
     struct timespec ts;
     ::clock_gettime(CLOCK_REALTIME, &ts);
     AbsTime time_now;
-    time_now.time_ns = toTime(ts).nanosecs;
+    time_now.timepoint = toTime(ts).nanosecs;
     return time_now;
 }
 
+Duration::Duration(const AbsTime& time0) :
+    nanosecs(time0.timepoint)
+{}
+
+Duration::Duration(const AbsTime& start, const AbsTime& finish) :
+    nanosecs(finish.timepoint - start.timepoint)
+{}
+
 struct timespec& toTimespec(struct timespec& ts, const Duration& t) {
     ts.tv_sec  = t / TIME_SEC;
     ts.tv_nsec = t % TIME_SEC;
@@ -63,7 +84,7 @@ std::ostream& operator<<(std::ostream& o, const AbsTime& t) {
         "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec"
     };
     struct tm * timeinfo;
-    time_t rawtime(t.time_ns/TIME_SEC);
+    time_t rawtime(t.timepoint/TIME_SEC);
     timeinfo = localtime (&rawtime);
     char time_string[100];
     sprintf ( time_string,
@@ -78,5 +99,12 @@ std::ostream& operator<<(std::ostream& o, const AbsTime& t) {
     return o << time_string;
 }
 
-}}
+void sleep(int secs) {
+    ::sleep(secs);
+}
 
+void usleep(uint64_t usecs) {
+    ::usleep(usecs);
+}
+
+}}
diff --git a/cpp/src/qpid/sys/posix/Time.h b/cpp/src/qpid/sys/posix/Time.h
new file mode 100755
index 0000000000..62d734c816
--- /dev/null
+++ b/cpp/src/qpid/sys/posix/Time.h
@@ -0,0 +1,34 @@
+#ifndef QPID_SYS_POSIX_TIME_H
+#define QPID_SYS_POSIX_TIME_H
+
+/*
+ *
+ * Copyright (c) 2006 The Apache Software Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include "qpid/sys/IntegerTypes.h"
+
+namespace qpid {
+namespace sys {
+
+/**
+ * Class to represent an instant in time.
+ */
+typedef int64_t TimePrivate;
+
+}} // namespace qpid::sys
+
+#endif  /*!QPID_SYS_POSIX_TIME_H*/